How to add more than 10 sub-card within 1 card?

Hi experts,

I try to add 12 months reports (1 sub card for a month) within 1 card (visible), orientation = horizontal.

So far it only allows max 10 (limited up to 10 sub card)

Is there a way to achieve this?

Content (required):

try to add 12 months reports (1 sub card for each month) within 1 card

Version (include the version you are using, if applicable):

PBCS

Code Snippet (add any code snippets that support your topic, if applicable):